1,654,363 results match your criteria: "Department of Biology; University of Massachusetts Amherst; Amherst[Affiliation]"
JACC Case Rep
January 2025
Department of Cardiovascular Medicine, Richmond Heart & Vascular Associates, Richmond, Virginia, USA.
Transcatheter edge-to-edge repair (TEER) is approved for patients with symptomatic severe mitral regurgitation (MR) who are deemed inoperable or at high surgical risk with life expectancy of more than 1 year, but has also been used off-label in patients with hypertrophic obstructive cardiomyopathy (HOCM) for symptomatic relief who are not candidates for septal reduction therapy. An 83-year-old woman with decompensated heart failure was found to have HOCM with systolic anterior motion of the mitral valve and a large P2 flail segment with ruptured cords. TEER was performed resulting in mild MR and resolution of the prior left ventricular outflow tract gradient.
View Article and Find Full Text PDFJ Clin Exp Dent
December 2024
Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP, Brazil.
Background: Radiotherapy is one of the main treatments for head and neck cancer; however, due to its non-selectivity the glandular tissue can be affected. This scoping review aimed to identify the evidence about mesenchymal stem cell therapies for irradiated salivary gland regeneration.
Material And Methods: Two independent reviewers performed a literature search in MEDLINE/PubMed, Scopus, and Web of Science.
Endocr Oncol
January 2024
OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK.
Current models for the study of neuroendocrine tumours (NETs) are severely limited. While (e.g.
View Article and Find Full Text PDFEndocr Oncol
January 2024
Centro de Investigación Biomédica en Red, CIBERONC, ISCIII, Madrid, Spain.
While the role of cancer stem cells (CSCs) in tumorigenesis, chemoresistance, metastasis, and relapse has been extensively studied in solid tumors, such as adenocarcinomas or sarcomas, the same cannot be said for neuroendocrine neoplasms (NENs). While lagging, CSCs have been described in numerous NENs, including gastrointestinal and pancreatic NENs (PanNENs), and they have been found to play critical roles in tumor initiation, progression, and treatment resistance. However, it seems that there is still skepticism regarding the role of CSCs in NENs, even in light of studies that support the CSC model in these tumors and the therapeutic benefits of targeting them.
View Article and Find Full Text PDFMol Ther Oncol
September 2024
Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Hematopoietic stem cell transplantation (HSCT) is widely used to treat patients with life-threatening hematologic and immune system disorders. Current nontargeted chemo-/radiotherapy conditioning regimens cause tissue injury and induce an array of immediate and delayed adverse effects, limiting the application of this life-saving treatment. The growing demand to replace canonical conditioning regimens has led to the development of alternative approaches, such as antibody-drug conjugates, naked antibodies, and CAR T cells.
View Article and Find Full Text PDFEnviron Epidemiol
February 2025
Department of Public Health Sciences, University of Rochester Medical Center, Rochester, New York.
Background: Sex steroid hormones are critical for maintaining pregnancy and optimal fetal development. Air pollutants are potential endocrine disruptors that may disturb sex steroidogenesis during pregnancy, potentially leading to adverse health outcomes.
Methods: In the Environmental influences on Child Health Outcomes Understanding Pregnancy Signals and Infant Development pregnancy cohort (Rochester, NY), sex steroid concentrations were collected at study visits in early-, mid-, and late-pregnancy in 299 participants.
Biomed Res Int
January 2025
Department of Biology, College of Natural & Computational Sciences, University of Gondar, Gondar, Ethiopia.
Hepatitis and human immunodeficiency virus (HIV) are major public health issues in developing countries, including Ethiopia. These viruses can be transmitted from mother to child during birth or through contact with contaminated blood. In many areas of Ethiopia, viral hepatitis and HIV infections are significant health concerns for pregnant women.
View Article and Find Full Text PDFJACC Basic Transl Sci
December 2024
Vascular Metabolism Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Exercise intolerance, a hallmark of heart failure with preserved ejection fraction (HFpEF) exacerbated by obesity, involves unclear mechanisms related to skeletal muscle metabolism. In a "2-hit" model of HFpEF, we investigated the ability of exercise therapy (voluntary wheel running) to reverse skeletal muscle dysfunction and exercise intolerance. Using state-of-the-art metabolic cages and a multiomic approach, we demonstrate exercise can rescue dysfunctional skeletal muscle lipid and branched-chain amino acid oxidation and restore exercise capacity in mice with cardiometabolic HFpEF.
View Article and Find Full Text PDFAlzheimers Dement (N Y)
January 2025
Indiana Alzheimer Disease Research Center and Center for Neuroimaging, Department of Radiology and Imaging Sciences Indiana University School of Medicine Indianapolis Indiana USA.
Introduction: The exponential growth of genomic datasets necessitates advanced analytical tools to effectively identify genetic loci from large-scale high throughput sequencing data. This study presents Deep-Block, a multi-stage deep learning framework that incorporates biological knowledge into its AI architecture to identify genetic regions as significantly associated with Alzheimer's disease (AD). The framework employs a three-stage approach: (1) genome segmentation based on linkage disequilibrium (LD) patterns, (2) selection of relevant LD blocks using sparse attention mechanisms, and (3) application of TabNet and Random Forest algorithms to quantify single nucleotide polymorphism (SNP) feature importance, thereby identifying genetic factors contributing to AD risk.
View Article and Find Full Text PDFNeurophotonics
January 2025
Weill Cornell Medicine, Department of Neurological Surgery, New York, United States.
Significance: Despite the availability of various anti-seizure medications, nearly 1/3 of epilepsy patients experience drug-resistant seizures. These patients are left with invasive surgical options that do not guarantee seizure remission. The development of novel treatment options depends on elucidating the complex biology of seizures and brain networks.
View Article and Find Full Text PDFFamilial Platelet Disorder with associated Myeloid Malignancy (FPDMM, FPD/AML, -FPD), caused by monoallelic deleterious germline variants, is characterized by bleeding diathesis and predisposition for hematologic malignancies, particularly myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). Clinical data on FPDMM-associated AML (FPDMM-AML) are limited, complicating evidence-based clinical decision-making. Here, we present retrospective genetic and clinical data of the largest cohort of FPDMM patients reported to date.
View Article and Find Full Text PDFPNAS Nexus
January 2025
Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain.
L-Amino acid transporters (LATs) play a key role in a wide range of physiological processes. Defects in LATs can lead to neurological disorders and aminoacidurias, while the overexpression of these transporters is related to cancer. BasC is a bacterial LAT transporter with an APC fold.
View Article and Find Full Text PDFAm J Transl Res
December 2024
Department of Cardiology, The Second Affiliated Hospital of Nanchang University Nanchang 330006, Jiangxi, China.
Objective: To evaluate systematically the feasibility and effectiveness of His Bundle Pacing (HBP) for cardiac resynchronization therapy.
Methods: A comprehensive search was conducted in PubMed, EMbase, WOS, Cochrane Library, Medline, and SinoMed for studies published between December 2003 and December 2023. Primary clinical outcomes included implantation success, QRS wave duration, pacing threshold, left ventricular ejection fraction (LVEF), left ventricular end-diastolic diameter (LVEDD), New York Heart Association (NYHA) cardiac function class, and complications.
Am J Transl Res
December 2024
Laboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University Providence, RI 02903, USA.
Objectives: Prostate cancer (PCa) is a leading cause of cancer death in men worldwide. Approximately 30% of castrate-resistant PCa becomes refractory to therapy due to neuroendocrine differentiation (NED) that is present in <1% of de-novo tumors. First-in-class imipridone ONC201/TIC10 therapy has shown clinical activity against midline gliomas, neuroendocrine tumors, and PCa.
View Article and Find Full Text PDFObjectives: To explore the landscape of BRCA1/2 mutations in gastric cancer patients.
Methods: Next-generation sequencing (NGS), Sanger sequencing, reverse transcription quantitative polymerase chain reaction (RT-qPCR), Immunohistochemistry, The Cancer Genome Atlas (TCGA), gnomAD, and DAVID.
Results: With 95% of bases boasting a phred score surpassing 30 and a minimum coverage depth of 500X, our NGS approach ensures high-quality data acquisition.
Cureus
December 2024
Laboratory of Genomic Medicine, GHC GENETICS SK, Comenius University Science Park, Bratislava, SVK.
X-linked severe combined immunodeficiency disease (X-SCID) is a form of inborn errors of immunity (IEI) associated with causal DNA variants of the gene. Patients with X-SCID are characterized by a combination of cellular and humoral immunodeficiencies associated with increased susceptibility to infections. The presented cases constituted two unrelated male patients from the Slovak population.
View Article and Find Full Text PDFGland Surg
December 2024
Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA.
Background: With rising well-differentiated thyroid cancer (WDTC) incidence, the appropriate treatment choice remains controversial for T1 tumors <2 cm. This study analyzed differences in surgery refusal and survival outcomes between T1a (<1 cm) and T1b (1-2 cm) WDTC, examining the demographic and clinical characteristics associated with patients who decide to either undergo or refuse recommended surgery.
Methods: We studied 81,664 T1N0M0 WDTC patients in the Surveillance, Epidemiology, and End Results (SEER) registry [2000-2019].
Regen Ther
June 2024
Department of Medical and Translational Biology, Umeå University, SE-901 87 Umeå, Sweden.
Introduction: Before performing cell therapy clinical trials, it is important to understand how cells are influenced by different growth conditions and to find optimal xeno-free medium formulations. In this study we have investigated the properties of adipose tissue-derived stem cells (ASCs) cultured under xeno-free conditions.
Methods: Human lipoaspirate samples were digested to yield the stromal vascular fraction cells which were then seeded in i) Minimum Essential Medium-α (MEM-α) supplemented with 10 % (v/v) fetal bovine serum (FBS), ii) MEM-α supplemented with 2 % (v/v) human platelet lysate (PLT) or iii) PRIME-XV MSC expansion XSFM xeno-free, serum free medium (XV).
Nat Geosci
January 2025
School of Earth and Environment, University of Leeds, Leeds, UK.
Controls on organic carbon preservation in marine sediments remain controversial but crucial for understanding past and future climate dynamics. Here we develop a conceptual-mathematical model to determine the key processes for the preservation of organic carbon. The model considers the major processes involved in the breakdown of organic carbon, including dissolved organic carbon hydrolysis, mixing, remineralization, mineral sorption and molecular transformation.
View Article and Find Full Text PDFAlzheimers Dement (Amst)
January 2025
Biochemistry and Molecular Biology Department Neurodegenerative Pathologies LBMMS Hospices Civils de Lyon Lyon France.
Introduction: Seed amplification assays (SAAs) demonstrate remarkable diagnostic performance in alpha-synucleinopathies. However, existing protocols lack accessibility in routine laboratories, mainly due to the requirement for in-house production of recombinant alpha-synuclein (aSyn). This study proposes a cerebrospinal fluid (CSF) aSyn-SAA protocol using solely commercial reagents to facilitate its clinical implementation.
View Article and Find Full Text PDFNAR Cancer
March 2025
Department of Pathology and Laboratory Medicine, The Warren Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI 02903, USA.
Cancer is a complex disease with heterogeneous mutational and gene expression patterns. Subgroups of patients who share a phenotype might share a specific genetic architecture including protein-protein interactions (PPIs). We developed the Atlas of Protein-Protein Interactions in Cancer (APPIC), an interactive webtool that provides PPI subnetworks of 10 cancer types and their subtypes shared by cohorts of patients.
View Article and Find Full Text PDFTransl Med Commun
January 2024
Department of Anatomy, Physiology, & Cell Biology, School of Veterinary Medicine, and California National Primate Research Center, University of California, Davis, County Road 98 & Hutchison Drive, Davis, CA, USA.
Background: Late-stage human immunodeficiency virus (HIV) infection is typically characterized by low CD4 + T-cell count. We previously showed that profound changes in the monocyte turnover (MTO) rate in rhesus macaques infected by the simian immunodeficiency virus (SIV) outperforms declining CD4 + T-cell counts in predicting rapid health decline associated with progression to terminal disease. High MTO is associated with increased tissue macrophage death.
View Article and Find Full Text PDFFEMS Microbes
December 2024
Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom.
Bacteriological agar plates are commonly used to carry out experiments for the selective growth of microorganisms and the isolation of single-strain colonies. However, the presence of agar itself may be a confounding factor since it may serve as a source of carbon and energy. Moreover, there have been ongoing constraints on the production and sourcing of agar.
View Article and Find Full Text PDFAppl Psychol Health Well Being
February 2025
Department of Psychiatry and Psychotherapy, Medical School and University Hospital, 11 Eberhard Karls University of Tübingen, Tübingen, Germany.
Physical and cognitive interventions are deemed the primary methods of improving cognitive functioning in healthy older adults. However, the effectiveness of these interventions is still debated. This systematic review, synthesised findings from the literature on four different types of interventions: physical activities, cognitive training, cognitive stimulation and a combined intervention.
View Article and Find Full Text PDFLiver Int
February 2025
Roger Williams Institute of Liver Studies, Foundation for Liver Research, London, UK.
Background: Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) encompasses a spectrum of histological conditions ranging from simple steatosis to fibrosing steatohepatitis, and is a risk factor for cardiovascular diseases (CVD). While oxidised apolipoproteins A and B have been linked to obesity and CVD, the association between other oxidised apolipoproteins and MASLD is yet to be established. To fill this gap, we characterised the circulating serum peptidome of patients with MASLD.
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